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Finding the Fourth Proportional to 62,273, 93,410.32 and 20,720

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Solution

The fourth proportional to 62,273, 93,410.32 and 20,720 is: 31,080.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,273 : 93,410.32 = 20,720 : x
  2. Step 2: Convert to fraction form
    62,273/93,410.32 = 20,720/x
  3. Step 3: Cross multiply
    62,273x = 93,410.32 × 20,720
  4. Step 4: Simplify right side
    62,273x = 1,935,461,830.40
  5. Step 5: Solve for x
    x = 1,935,461,830.40/62,273
  6. Step 6: Final answer
    x = 31,080.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.